Hi folks,
How does Pathfinder handle undead and age modifiers. Does a human who gets turned into a vampire, say, at age 30 and then (un)lives for another 50 years get the appropriate mental age modifiers.
Similarly, if a venerable human wizard becomes a lich do they retain their negative age modifiers to strength and dexterity (obviously constitution is not an issue)?
They don't have rules for undead as far as aging goes. Mostly because advance of undead in general is up to the GM. You might have a vampire or Lich who has is the really strong due to his old age. Others might still be a normal vampire of lich with no changes.
PS:There are guideline as to when one might be become a demlich and more guidelines as to when a demilich might cease to function.
Age for undead? Well its a delicate matter. First an undead gets created from a corpse. If there are enough fleshy bits on it then they normally are turned into a more fleshy form like a Vampire or a Zombie. If most of the fleshy bits are gone and it is simply a skeleton that is left well then they are turned into a Skeleton. As age progresses even the skeleton wears away and there isn't much left of a corpse at all. ...this is the realm of incorporeal undead like Shadows, Ghosts and Wraiths.
...yeah, sorry. Totally a joke but thats what I thought of first when I saw the topic. ;)
As a more direct answer: for many undead the age modifiers that they start with when becoming an undead is what they keep after becoming undead. In other words if you are middle aged when you become a vampire then you keep those modifiers during your time as a vampire. I realize that the physical modifiers may not make as much sense anymore but I can see that both ways, really.